Miami Ties All-Time Record High of 100°F (38°C) Set in 1942
On the afternoon of August 18, temperatures in Miami reached 100°F (38°C), tying the city's all-time record high set in 1942. Since record-keeping began in 1895, this marks only the second time Miami has reached this temperature — an extremely rare event.
So how hot did it get at Miami International Airport (KMIA/MIA) that day?
Hourly Observations at Miami International Airport
According to METAR reports from Miami International Airport (KMIA/MIA) on August 18, the airport recorded 99°F (37°C) for three consecutive hours at 2:53 p.m., 3:53 p.m., and 4:53 p.m. local time, confirming that extremely high temperatures persisted at the airport as well.
KMIA 182053Z 33005KT 9999 FEW060 FEW300 37/19 A2999 RMK AO2 SLP156 T03720194 58019
KMIA 181953Z 00000KT 9999 FEW060 FEW300 37/20 A3001 RMK AO2 SLP162 T03670200 $
KMIA 181853Z 27008KT 9999 FEW050 FEW250 37/20 A3003 RMK AO2 SLP169 T03670200
Miami International Airport's August Maximum Temperatures Over the Past 10 Years (METAR Records)
Looking at August maximum temperatures over the past 10 years, 2026 reached 99°F (37°C), matching 2024 as the highest level recorded in the past decade.
| Year | August Max Temperature |
|---|---|
| 2016–2019, 2021–2022 | 93°F (34°C) |
| 2020, 2023 | 97°F (36°C) |
| 2024 | 99°F (37°C) |
| 2025 | 95°F (35°C) |
| 2026 (this event) | 99°F (37°C) |
Miami International Airport Temperature Forecast for August 19
On August 19, temperatures are expected to peak at around 95°F (35°C) near 2:00 p.m. However, afternoon showers and thunderstorms are possible, and depending on their timing, the actual high could end up lower than forecast. Highs on August 20 and 21 are both expected to be around 91°F (33°C), marking a return to typical late-summer heat for Miami after this unusual heat wave.
| ICAO / IATA | UTC Time | Local Time | Temperature |
|---|---|---|---|
| KMIA / MIA | Aug 19, 12Z | 8:00 a.m. | 84°F (29°C) |
| KMIA / MIA | Aug 19, 13Z | 9:00 a.m. | 86°F (30°C) |
| KMIA / MIA | Aug 19, 14Z | 10:00 a.m. | 90°F (32°C) |
| KMIA / MIA | Aug 19, 15Z | 11:00 a.m. | 91°F (33°C) |
| KMIA / MIA | Aug 19, 16Z | 12:00 p.m. | 93°F (34°C) |
| KMIA / MIA | Aug 19, 17Z | 1:00 p.m. | 95°F (35°C) |
| KMIA / MIA | Aug 19, 18Z | 2:00 p.m. | 95°F (35°C) |
| KMIA / MIA | Aug 19, 19Z | 3:00 p.m. | 93°F (34°C) |
| KMIA / MIA | Aug 19, 20Z | 4:00 p.m. | 93°F (34°C) |
| KMIA / MIA | Aug 19, 21Z | 5:00 p.m. | 91°F (33°C) |
| KMIA / MIA | Aug 19, 22Z | 6:00 p.m. | 90°F (32°C) |
| KMIA / MIA | Aug 19, 23Z | 7:00 p.m. | 88°F (31°C) |
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